Students and Teachers Forum
Here, t3 = 36 [ Since, tn = a + (n - 1)D.] or, a + 2D = 36................(i) And, t7 = 68 \or, a + 6D = 68.....(ii) \ Now, solve these two equations and get a & D. \ Then, b = t2 =a + D c = t4 = .....
Here, gof(x) = 9 or, g(6x - 2) = 9 or, 2(6x - 2) + 1 = 9 or, 12x - 3 = 9 or, 12x = 12 or, x = .....
Generation of employment may be defined as entrepreneur skill where an individual takes risks and make an investment for profit. In this condition, he/she may employ many individuals thereby providing a source of income to .....
Some of the priorities for achieving the target are: Develop hydropower and other energies. Increase the productivity, diversification and commercialization of the agricultural sector Develop the basic education, health, drinking .....
The term gender discrimination means a situation in which someone is treated less well because of their sex. .....
Here, LHS = tan(x + 45) - tan(x-45) = tan(45 + x) - tan(45 - .....
Here, taking LHS, = cot(A + 45o) - tan(A - 45o) = cos(A + 45o) / sin(A + 45o) - sin(A - 45o)/cos(A - 45o) [ Since, cot= cos/sin & tan= sin/cos.] = [cos(A + 45o)cos(A .....
Here, LHS = Tan (A + 45o ) + tan (A - 45o) = Tan(45o + A) - tan(45o- A) = Sin(45o + A)/cos(45o + A) - sin(45o - A)/cos(45o - A) = {sin(45o + A) cos(45o - A) - cos(45o + A)sin(45o - A)}/{cos(45o+ A)cos(45o - A)} = sin{(45o + .....
The equation of straight line parallel to the x-axis and at a distance 3 unit above is x = 3. The equation of straight line parallel to the x-axis and at a distance 4 unit below is x = .....
Here, Square roots of 32 is = √32 = √(2.2.2.2.2) = 2.2√2 = 4√2, which is required .....
Taking .....
|-4/2| + |6/3| - |-1/2| = 4/2 + 6/3 - 1/2 = 2 + 2 - 1/2 = 4 - 1/2 = (2x4 - 1)/2 = (8 - 1)/2 = .....
For metallurgy, first, we need to find and get the metal ores. The metal ores contain a lot of impurities. The impurities are separated by grinding the metal ores and then washing using water. The separated ore contains more metal .....
According to Nebular hypothesis, our solar system was originally a cloud of dust and gas. Due to some factors, the cloud started to condense and spin. Because of the spinning, most of the dust and gas particles began to collapse at a denser .....
Here, |- 4 / 2| + |6 / 3| - |-1 / 2| = 4/2 + 6/3 - 1/2 = 2 + 2 - 1/2 = 4 - 1/2 = (8 - 1)/2 = .....
We know, Selling price = marked price (MP) - discount Selling price = cost price (CP) + profit Combining both equations, we get CP + profit = MP - discount -------- (i) Here, for discount = 4%, profit = 20% let for discount .....
Here, SP after discount = MP - dicount% of MP = Rs.2400 - 20/100 x 2400 .....
Tidal energy is produced by converting the energy contained in a tide into a usable form of energy like electricity. Tidal energy is produced using a generator. The turbine of the generator moves to convert the energy of tides into .....
Organic compounds are the compounds of carbon atom with other atoms except for the oxides, carbonates, and carbides. So, organic compounds are formed by the combination of carbon atoms with other atoms in which carbon atoms and other atoms are .....
Here, We know, Discount amount = Discount % of MP or, Rs. 750 = 25/100 x MP or, MP = Rs.3000. SP after discount = MP - discount .....
Here, Final SP = Rs.5610 or, SP + 10/100 x SP = 5610 [ Since, SP + VAT % of SP = Fanal SP.] or, SP = 5610 x 10/11 = Rs.5100 Again, SP = MP - Discoun% of MP or, 5100 = MP - 15/100 x MP or, 5100 = 85MP/100 or, MP = 510000/85 = .....
Here, CI(annually) = P{(1 + R/100)T - 1} = 100000{(1 + 10/100)2 - 1} = .....
During the 8th century, King Okkak used to rule in Saket kingdom. He was supposed to be ancestry of Shakyas on that time. The king was married to five queens. Among them, the big queen or the eldest queen Bhatra has given birth to four princes .....
Here, x cosθ - y sinθ = a....(i) and x sinθ + y cosθ = b On squaring both the equations, a² = x²cos²θ + y²sin²θ - 2xy cosθ .....
Let P(x, y) be the point on the locus and A(-1, 5) and B(2, -3) are the given points. By the question, BP = 2AP or, BP2 = 4AP2 [ Squaring both sides.] Using distance formula, or, (x - 2)2 + (y + 3)2 = .....
Let P(x, y) be the point on the locus and A(-a, 0) and B(a, 0) are the given points. By the question, AP = 2BP or, AP2 = 4BP2 [ Squaring both sides.] Using distance formula, or, (x + a)2 + (y - 0)2 = .....
Here are the 5 plants which bear .....
मीठो गीत गाएर वनलाई संगीतमय बनाउने पनि त कोइली नै हो नि .....
Alcohol is a transparent colourless liquid. If we use an alcoholic thermometer to measure temperature, we cannot see the level of alcohol in the thermometer if the alcohol is colourless. This makes the temperature reading difficult. To read the .....
Here, given equation is 3x + 4y = 12 or, 3x/12 + 4y/12 = 12/12 or, x/4 + y/3 = 1 Comparing this with x/a + y/b = 1, we get a = 4 & b = 3. Now, x-intercept of the required line is .....
Carbon dioxide gas acts as fire extinguisher as it is sprayed over the fire, it covers the substance on which it is sprayed. It makes a thin protective film. This cuts the oxygen supply which is necessary for burning (combustion reaction). Carbon .....
Here, x2 - 2xy sinA - y2 cos2A = 0 or, x2 - 2xy sinA - y2(cos2A - sin2A) = 0 or, x2 - 2x.ysinA + (ysinA)2 - (ycosA)2 = 0 or, (x - y sinA)2 - (y cosA)2 = 0 or, (x - ysinA + ycosA) ( x - yinA - ycosA) = .....
Here, (m + n + p)2 - (m - n +p)2 Using formula of a2 - b2, we get = {m + n + p + m - n + p}{(m + n + p - ( m - n + p)} = (2m + 2p)(m + n + p - m + n - p) = 2(m + n)(2n) = 2.2n(m + .....
Here, we need to factorize a4 - 6a2 - 7 - 8x - x2. This can be written as, =(a2)2 - 2 a2 .3 + (3)2 - 16 - 8x - x2 =(a2 - 3)2 - (x 2 + 2 x. 4 + 42) [ Since, using a2-2ab+b2 = .....
There are 3 questions with numbered a. Please specify .....
Hydrochloric acid is a strong acid. When a metal reacts with hydrochloric acid, metal chloride is formed and hydrogen gas evolves. This reaction occurs in any state of acid i.e. either the acid is concentrated or diluted. However, the reaction is .....
There are two points P & Q for trisection of the line segment AB. Then, AP:PB = 1:2 = m1:m .....
Twins are set of off-springs born to a mother during same period of .....
Cristian is a person who follows Christianity .....
There are many religions in the world. 10 religions followed by people in the world are: 1. Christianity 2. Islam 3. Hindu 4. Buddhism 5. Sikhism 6. Jainism 7. Judaism 8. Bahai 9. Shinto 10. .....
Jesus Christ is a religious leader. In Christianity, Jesus Christ is believed to be an incarnation of God .....
Weather forecasting is based on mathematics and observational data. This data includes temperature, pressure, wind, humidity, and dew point. Weather forecasting is the application of current technology and science to predict the state of the .....
Here, p2/(p - y)y - 2p/(p - y)y - 1 + 1/(p - y)y-2 = p2/(p - y)y - 2p/(p - y)y/(p-y) + 1/(p - y)y/(p-y)2 = p2/(p - y)y - 2p(p - y)/(p - y)y + (p - y)2/(p - y)y = {p2 - 2p(p - y) + (p - y)2}/(p - .....
Let the moving point be P(x, y) , A(2, 4) and point on Y-axis be B(0, y). By the question, AP = BP or, AP2 = BP2 or, (x - 2)2 + (y - 4)2 = (x - 0)2 + (y - y)2 or, x2 - 4x + 4 + y2 - 8y + 16 = x2 + 0 or, .....
Here, Product of two expressions = 6xy - 15xy or, 3xy ⨯ Another expression = 3xy(2 - 5) or, other expression = 3xy (-3)/3xy .....
Some of the lessons we learn are: every one has right for medical care people fall sick due to their negligence for hygiene we must visit hospitals and health centers for medical check-up every hospitals and clinics must have qualified doctors .....
We bath to keep our body clean. We wash our hands before eating food. If we do not bath and wash our hands, we become dirty. When we are dirty, bacteria and germs attack our body and we suffer from .....